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comparison test/testshape.c @ 4808:2ae79ed78a5a

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More work on color-key mode.
author Eli Gottlieb <eligottlieb@gmail.com>
date Fri, 23 Jul 2010 01:48:42 -0400
parents de3b3455f8ec
children 329708ffe2a7
comparison
equal deleted inserted replaced
4807:c9eb95f29770 4808:2ae79ed78a5a
11 #define SHAPED_WINDOW_X 150 11 #define SHAPED_WINDOW_X 150
12 #define SHAPED_WINDOW_Y 150 12 #define SHAPED_WINDOW_Y 150
13 #define SHAPED_WINDOW_DIMENSION 640 13 #define SHAPED_WINDOW_DIMENSION 640
14 14
15 #define TICK_INTERVAL 18 15 #define TICK_INTERVAL 18
16
17 typedef struct LoadedPicture {
18 SDL_Surface *surface;
19 SDL_Texture *texture;
20 SDL_WindowShapeMode mode;
21 } LoadedPicture;
16 22
17 void render(SDL_Window* window,SDL_Texture *texture,SDL_Rect texture_dimensions) { 23 void render(SDL_Window* window,SDL_Texture *texture,SDL_Rect texture_dimensions) {
18 SDL_SelectRenderer(window); 24 SDL_SelectRenderer(window);
19 25
20 //Clear render-target to blue. 26 //Clear render-target to blue.
47 printf("Could not initialize SDL video.\n"); 53 printf("Could not initialize SDL video.\n");
48 exit(-2); 54 exit(-2);
49 } 55 }
50 56
51 Uint8 num_pictures = argc - 1; 57 Uint8 num_pictures = argc - 1;
52 SDL_Surface **pictures = malloc(sizeof(SDL_Surface*)*num_pictures); 58 LoadedPicture* pictures = malloc(sizeof(LoadedPicture)*num_pictures);
53 int i = 0; 59 int i = 0;
54 for(i=0;i<num_pictures;i++) 60 for(i=0;i<num_pictures;i++)
55 pictures[i] = NULL; 61 pictures[i].surface = NULL;
56 for(i=0;i<num_pictures;i++) { 62 for(i=0;i<num_pictures;i++) {
57 pictures[i] = SDL_LoadBMP(argv[i+1]); 63 pictures[i].surface = SDL_LoadBMP(argv[i+1]);
58 if(pictures[i] == NULL) { 64 if(pictures[i].surface == NULL) {
59 int j = 0; 65 int j = 0;
60 for(j=0;j<num_pictures;j++) 66 for(j=0;j<num_pictures;j++)
61 if(pictures[j] != NULL) 67 if(pictures[j].surface != NULL)
62 SDL_FreeSurface(pictures[j]); 68 SDL_FreeSurface(pictures[j].surface);
63 free(pictures); 69 free(pictures);
64 SDL_VideoQuit(); 70 SDL_VideoQuit();
65 printf("Could not load surface from named bitmap file.\n"); 71 printf("Could not load surface from named bitmap file.\n");
66 exit(-3); 72 exit(-3);
73 }
74 SDL_PixelFormat* format = pictures[i].surface->format;
75 Uint32 format_enum = SDL_MasksToPixelFormatEnum (format->BitsPerPixel,format->Rmask,format->Gmask, format->Bmask,format->Amask);
76 if(SDL_ISPIXELFORMAT_ALPHA(format_enum)) {
77 pictures[i].mode.mode = ShapeModeBinarizeAlpha;
78 pictures[i].mode.parameters.binarizationCutoff = 1;
79 }
80 else {
81 pictures[i].mode.mode = ShapeModeColorKey;
82 SDL_Color black = {0,0,0,0xff};
83 pictures[i].mode.parameters.colorKey = black;
67 } 84 }
68 } 85 }
69 86
70 SDL_Window *window = SDL_CreateShapedWindow("SDL_Shape test",SHAPED_WINDOW_X,SHAPED_WINDOW_Y,SHAPED_WINDOW_DIMENSION,SHAPED_WINDOW_DIMENSION,SDL_WINDOW_RESIZABLE | SDL_WINDOW_SHOWN); 87 SDL_Window *window = SDL_CreateShapedWindow("SDL_Shape test",SHAPED_WINDOW_X,SHAPED_WINDOW_Y,SHAPED_WINDOW_DIMENSION,SHAPED_WINDOW_DIMENSION,SDL_WINDOW_RESIZABLE | SDL_WINDOW_SHOWN);
71 if(window == NULL) { 88 if(window == NULL) {
72 for(i=0;i<num_pictures;i++) 89 for(i=0;i<num_pictures;i++)
73 SDL_FreeSurface(pictures[i]); 90 SDL_FreeSurface(pictures[i].surface);
74 free(pictures); 91 free(pictures);
75 SDL_VideoQuit(); 92 SDL_VideoQuit();
76 printf("Could not create shaped window for SDL_Shape.\n"); 93 printf("Could not create shaped window for SDL_Shape.\n");
77 exit(-4); 94 exit(-4);
78 } 95 }
79 if(SDL_CreateRenderer(window,-1,SDL_RENDERER_PRESENTFLIP2) == -1) { 96 if(SDL_CreateRenderer(window,-1,SDL_RENDERER_PRESENTFLIP2) == -1) {
80 SDL_DestroyWindow(window); 97 SDL_DestroyWindow(window);
81 for(i=0;i<num_pictures;i++) 98 for(i=0;i<num_pictures;i++)
82 SDL_FreeSurface(pictures[i]); 99 SDL_FreeSurface(pictures[i].surface);
83 free(pictures); 100 free(pictures);
84 SDL_VideoQuit(); 101 SDL_VideoQuit();
85 printf("Could not create rendering context for SDL_Shape window.\n"); 102 printf("Could not create rendering context for SDL_Shape window.\n");
86 exit(-5); 103 exit(-5);
87 } 104 }
88 105
89 SDL_Texture **textures = malloc(sizeof(SDL_Texture*)*num_pictures);
90 for(i=0;i<num_pictures;i++) 106 for(i=0;i<num_pictures;i++)
91 textures[i] = NULL; 107 pictures[i].texture = NULL;
92 for(i=0;i<num_pictures;i++) { 108 for(i=0;i<num_pictures;i++) {
93 textures[i] = SDL_CreateTextureFromSurface(0,pictures[i]); 109 pictures[i].texture = SDL_CreateTextureFromSurface(0,pictures[i].surface);
94 if(textures[i] == NULL) { 110 if(pictures[i].texture == NULL) {
95 int j = 0; 111 int j = 0;
96 for(j=0;j<num_pictures;i++) 112 for(j=0;j<num_pictures;i++)
97 if(textures[i] != NULL) 113 if(pictures[i].texture != NULL)
98 SDL_DestroyTexture(textures[i]); 114 SDL_DestroyTexture(pictures[i].texture);
99 free(textures);
100 for(i=0;i<num_pictures;i++) 115 for(i=0;i<num_pictures;i++)
101 SDL_FreeSurface(pictures[i]); 116 SDL_FreeSurface(pictures[i].surface);
102 free(pictures); 117 free(pictures);
103 SDL_DestroyRenderer(window); 118 SDL_DestroyRenderer(window);
104 SDL_DestroyWindow(window); 119 SDL_DestroyWindow(window);
105 SDL_VideoQuit(); 120 SDL_VideoQuit();
106 printf("Could not create texture for SDL_shape.\n"); 121 printf("Could not create texture for SDL_shape.\n");
114 unsigned int current_picture = 0; 129 unsigned int current_picture = 0;
115 SDL_WindowShapeMode mode = {ShapeModeDefault,1}; 130 SDL_WindowShapeMode mode = {ShapeModeDefault,1};
116 int button_down = 0; 131 int button_down = 0;
117 Uint32 format = 0,access = 0; 132 Uint32 format = 0,access = 0;
118 SDL_Rect texture_dimensions = {0,0,0,0}; 133 SDL_Rect texture_dimensions = {0,0,0,0};
119 SDL_QueryTexture(textures[current_picture],&format,&access,&texture_dimensions.w,&texture_dimensions.h); 134 SDL_QueryTexture(pictures[current_picture].texture,&format,&access,&texture_dimensions.w,&texture_dimensions.h);
120 SDL_SetWindowSize(window,texture_dimensions.w,texture_dimensions.h); 135 SDL_SetWindowSize(window,texture_dimensions.w,texture_dimensions.h);
121 SDL_SetWindowShape(window,pictures[current_picture],&mode); 136 SDL_SetWindowShape(window,pictures[current_picture].surface,&mode);
122 next_time = SDL_GetTicks() + TICK_INTERVAL; 137 next_time = SDL_GetTicks() + TICK_INTERVAL;
123 while(should_exit == 0) { 138 while(should_exit == 0) {
124 event_pending = SDL_PollEvent(&event); 139 event_pending = SDL_PollEvent(&event);
125 if(event_pending == 1) { 140 if(event_pending == 1) {
126 if(event.type == SDL_KEYDOWN) { 141 if(event.type == SDL_KEYDOWN) {
131 if(button_down && event.type == SDL_KEYUP) { 146 if(button_down && event.type == SDL_KEYUP) {
132 button_down = 0; 147 button_down = 0;
133 current_picture += 1; 148 current_picture += 1;
134 if(current_picture >= num_pictures) 149 if(current_picture >= num_pictures)
135 current_picture = 0; 150 current_picture = 0;
136 SDL_QueryTexture(textures[current_picture],&format,&access,&texture_dimensions.w,&texture_dimensions.h); 151 SDL_QueryTexture(pictures[current_picture].texture,&format,&access,&texture_dimensions.w,&texture_dimensions.h);
137 SDL_SetWindowSize(window,texture_dimensions.w,texture_dimensions.h); 152 SDL_SetWindowSize(window,texture_dimensions.w,texture_dimensions.h);
138 SDL_SetWindowShape(window,pictures[current_picture],&mode); 153 SDL_SetWindowShape(window,pictures[current_picture].surface,&mode);
139 } 154 }
140 if(event.type == SDL_QUIT) 155 if(event.type == SDL_QUIT)
141 should_exit = 1; 156 should_exit = 1;
142 event_pending = 0; 157 event_pending = 0;
143 } 158 }
144 render(window,textures[current_picture],texture_dimensions); 159 render(window,pictures[current_picture].texture,texture_dimensions);
145 SDL_Delay(time_left()); 160 SDL_Delay(time_left());
146 next_time += TICK_INTERVAL; 161 next_time += TICK_INTERVAL;
147 } 162 }
148 163
149 //Free the textures. 164 //Free the textures.
150 for(i=0;i<num_pictures;i++) 165 for(i=0;i<num_pictures;i++)
151 SDL_DestroyTexture(textures[i]); 166 SDL_DestroyTexture(pictures[i].texture);
152 free(textures);
153 //Destroy the window. 167 //Destroy the window.
154 SDL_DestroyWindow(window); 168 SDL_DestroyWindow(window);
155 //Free the original surfaces backing the textures. 169 //Free the original surfaces backing the textures.
156 for(i=0;i<num_pictures;i++) 170 for(i=0;i<num_pictures;i++)
157 SDL_FreeSurface(pictures[i]); 171 SDL_FreeSurface(pictures[i].surface);
158 free(pictures); 172 free(pictures);
159 //Call SDL_VideoQuit() before quitting. 173 //Call SDL_VideoQuit() before quitting.
160 SDL_VideoQuit(); 174 SDL_VideoQuit();
161 } 175 }